Window stool air outlet



J. H. VAN ALSBURG WINDOW STOOL AIR OUTLET- Aug. 3, 1948.

Filed Aug. 12, 1946 5&4? daRo A1 D 5 Mk I An-mums Patented Aug. 3, 1948 WINDOW STOOL AIR OUTLET I .l'erold H. Van Alsburg, Holland, Mich, assignorto Hart & Cooley Manufacturing Company, Holland, l /fichi, a corporation of'D'elaware Application August 12, 194.6,.Seria1- No. 689,993.

(Cl. list-90) iClaims. i

This. invention relates to a Window air outlet and is for the. delivery of heated air in rooms at the bottom of surfaces which are directly affected by atmosphere of low temperature at its outside, which has the effect of lowering the temperature at the. inside thereof. With my invention, heated air is supplied to rise alongside the inner side. of said. temperature affected surface to minimize or balance. the. effect produced by th outer cold atmosphere.

One placewhere this very commonly occurs is in. connection. with windows in housings or buildings. At the colder times of the year the air in the room. adjacent the windows becomes con siderably cooled. The cooled air drops by gravity to the floor of the room and detrimentally affects itstemperature conditions. With my invention,

from a furnace, is delivered at the lower end of the window and rises at the inner side thereof to.

balance or more than balance the extraction of heat which passes through the glass of the window to the outside.

It is an object and purpose of the present in vention to provide a very practical, simply made, easily installed and economically manufactured outlet for a supply of warm air to be located at the inner side of the lower of a window at the inner portion of the window frame sill for the delivery of heated air for such upward circulation. Inmany cases, such air will be supplied between the window and curtains or drapes within the room, and will pass upwardly to mix with the cold air between the curtains and window, eliminating a downward draft and circulation of air from the inner side of the window to the floor and thence into the room space.

An understanding of the invention may be had from the following description, taken in connection with the accompanying drawings, in which,

Fig. 1 is a transverse vertical section through the air outlet of my invention.

Fig. 2 is a fragmentary enlarged like section, illustrating the air outlet structure and its window and wall attachment in enlarged detail.

Fig. 3 is a fragmentary plan view ofsaid air outlet structure.

Fig. 4 is a similar under plan view thereof.

Like references characters refer to like parts in the different figures of the drawings.

As shown in Fig. 1, a window may be located in a side wall I of a housing, building or the like, the window frame lower sill being indicated at 2, and with sliding window sashes 3 of conventional structure. The window may be of any of the con- 2, ventional forms and thedetailof structure thereof isnot important'in connection with the-present invention. The. air outlet structure of my" in vention is to be located at the bottom of the-wim dow within the sill. 2 and inside'th'e lower portion of the lower sash 3, as shown in Fig; 1'.

In the constructionof the air outlet, a warm'air' receiving housing is provided; made'f'rom sheet metal, having. ahorizontal upper'slde 4. which; at its outer portion, is bent to extend downwardly" in a substantially vertical'plane as. at i terminating in an outwardly extending flangev 6" which" lies against the upper side of the sill 2 andlagainst the upper side of which the lower rail'ofthalower sash 3 is brought when the window is closed. At its forward or inwardly extending portion", the metal plate is curved downwardly substantially into semicircular form as at T.

The top 6 of the housing may be provided. with a plurality of air outlet openings 8, shown as.

in alinement and spaced short distances from each other but, evidently, they'may be otherwise: arranged in. accordance with any desiredpatterrr The under side of the housing comprises a'. horizontal plate 9 spaced from thetop 4;, which ex"- tends inwardly toward the free edges of" the curvedlinner end 7' described. The plate 4at'. each end at. its inner portionis extended, as shown at.

section l and may be permanently connected. therewith, leaving. an elongated slot ll between.

the free lower. edge. of the section, I. andithe inner. edge of the bottom 9.

At its outer portion the bottom plate 9 is provided with an elongated inlet opening l2 surrounded by downwardly extending sides and ends 93, as best shown in Fig. 2, and above the outermost side of which the metal is extended upwardly in a section M lying within and against the section 5 previously described, and. permanently connected therewith. It is to be understood that the ends of this housing are closed by sheet metal members so that there is a closed housing having an air inlet at l2 and outlets at the openings 8 and slot H. A flue l5 located within the wall l, at its upper end enters the surrounding downwardly extending wall l3 around the inlet opening !2. Such flue is connected with the air circulation circuit which carwhich air preferably will be forcibly moved by a fan within the furnace or any other equivalent air pressure circulating means.

With the structure installed as described, the air forced upwardly through the flue [5, as arrow indicated, enters the housing through the inlet at l2 and leaves it through the outlet openings 8 and the slot Ii. It is apparent that either the openings at 8 or the slot at I I may be eliminated so that the air will leave the housing only through the outlet remaining. Heated air rises because of its lesser weight than cold air, and will pass upwardly at the inside of the window to meet the colder air from which heat has passed through the glass of the window to the outside colder atmosphere. The air passing upwardly through the outlet openings at 8 will mingle with that closest to the window glass, and that passing through the outlet slot II, will pass around the curved outer section 1 of the housing and thence upwardly for intermingling with air farther away from the window. In cases, where curtains are suspended from above the upper ends of the window to below their lower sides, the intermixed colder air and heated air take place largely between the. window and curtains. In any case, there will be eliminated and avoided a delivery of air at a lower temperature to the room which, when it occurs, results in lower temperature currents of air at and above the floor of the room. Such undesirable effect is eliminated with my invention. The structure described is practical and economical to make and is readily installed.

The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

1. In a structure as described, an elongated housing having a substantially horizontal top of sheet metal, a vertical side section extending from said horizontal top at its outer edge for a distance and an outwardly extending flange extending from said section, said top at its opposite longitudinal edge being curved dovmwardlyand back upon itself to provide an opposite side for the housing, vertical ends, a substantially horizontal bottom having an air entrance opening and downwardly extending walls surrounding said opening, said bottom at both ends thereof having forwardly eXtending fingers secured to said curved side of the housing with an air outlet opening between the adjacent edges of said bottom and side members and disposed between said fingers, said wall around the air inlet opening being adapted to have connection with a vertically disposed air carrying flue.

2. A window heated air receiving and delivering structure comprising, a housing of sheet metal having spaced horizontal top and bottom, said top and bottom at the outer portions thereof having a length to extend between the inner sides of the vertical sides of a window frame and at their inner portions increased in length to extend beyond the inner sides of said window frame sides, vertical end closures for the housing, a vertical outer side having an outwardly extending flange adjacent the upper side of a window sill, and an inner side curved substantially in the arc of a circle from the top to said bottom, said bottom at its intermediate portion and at its inner edge terminating a, short distance from the free edge of said curved side of the housing, and said bottom at its inner side portions having fingers extending to and overlapping and connected with said curved side of the housing, and said bottom adjacent the other side of the housing having an air entrance opening surrounded by downwardly extending fianges, within which the upper end of a vertical air carrying flue is adapted to be inserted.

3. A construction as defined in claim 2, said top between the sides of the housing having a plurality of spaced openings therethrough in alinement with each other lengthwise of the top.

4. In a structure as described, an elongated housing having spaced horizontal top and bottom, vertical ends and generally vertical sides, said bottom having an air outlet slot lengthwise thereof adjacent one side and an air entrance opening adjacent its other side, said bottom having downwardly extending flanges surrounding said entrance opening, and a vertical air flue having its upper end portion telescopically received within said flanges, said top of said housing having a plurality of spaced air outlet openings therethrough.

JEROLD H. VAN ALSBURG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 317,265 Wood May 5, 1885 999,385 Matthews Aug. 1, 1911 1,308,236 Glass July 1, 1919 1,996,019 Hueber Mar. 26, 1935 2,259,780 Seid Oct. 21, 1941 2,287,195 Richardson June 23, 1942 2,391,859 Babcock Jan. 1, 1946 

